The original Pac-Man. Glad it is here to play. Also, the play / controls are super sharp and smooth just like you remember them. Only bummer is no sound but the emulator works fast and perfectly in Firefox browser!

F1 key - Start Game (and if hit mid-game, will re-start instantly a new game)
F2 key - "Select" (On title screen toggles between 1 player mode and 2 player mode)
F3 key - "Option" (On title screen toggles the different difficulty levels symbolized by different fruits)

Directional number pad for movement:
(make sure Number Lock is on)
4 - Left
8 - Up
6 - Right
2 - Down

A classic! Even 30 years later. By the way, look at that odd cover-image for the original Atari game. Pac-Man with skinner legs and arms just looks 'weird'!